what is the difference between single ratio, multiple core
and multiple ratio, multiple core ? please explain.
when we megger is not damaged when we are measuring very low resistance? high d.c. voltage is produced in megger so according to i=V/R. current will be high so what is the reason ?
Kindly Tell me name of the book for electrical estimation and costing ,calculation or web site to download
what is the use of 6.6kV/6.6kV Transformer???
explain the transient reactance
define power quality
Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?
When capacitor bank connect on line. It's draw some current but it's current not increase of main line ammeter. Why?
What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2
Write the force balance equation of m ideal mass element.
the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?
What is the de rating factor of cable? What is the importance of the de rating factor in cable select
DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks